Withdrawn
The method consists in preparing of a test solution as specified in ISO 5317, precipitating of potassium ions by sodium tetraphenylborate in a weakly alkaline medium in the presence of disodium ethylenediaminetetraacetate dihydrate (EDTA, disodium salt) and formaldehyde, followed by filtrating of the precipitate, drying and weighing.
WITHDRAWN
SRPS H.B8.293:1986
95.99
Withdrawal of Standard
Jul 25, 2012
PUBLISHED
SRPS EN 15477:2009